Tym-bor

Selon le Dictionnaire Anglo-Saxon :

(?)

tym-bor

a revolving borer, an auger :-- Timbor rotum vel taratrum, bor desile, scafa olatrum, Wrt. Voc. i. 287, 9-11. [Cf. (?) tumbian: or (?) O.H.Ger. túmón rotari.] tym-bor